کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1286515 | 1497969 | 2014 | 4 صفحه PDF | دانلود رایگان |
• Pure Sn particle shows high specific capacity and high cycling stability with PFM conductive biner.
• The Sn/PFM electrode can deliver 806 mAh g−1 at C/50 and 610 mAh g−1 at C/10.
• After 10 cycles at C/10, the Sn/PFM electrode has no any capacity fading.
Pure Sn nanoparticles electrode with Poly(9,9-dioctylfluorene-co-fluorenone-co-methylbenzoic ester) (PFM) conductive binder was prepared and tested in sodium ion battery. It showed higher specific capacity and higher cycling stability without any carbon black compared with Sn/CMC (carboxy methylated cellulose) and Sn/PVDF (polyvinylidene fluoride) electrode. The Sn in Sn/PFM electrodes delivered 806 mAh g−1 at C/50 and 610 mAh g−1 at C/10. After 10 cycles at C/10, the capacity of Sn had no decay. SEM and TEM images showed that the Sn particles in Sn/PFM electrode were still in good conductive network despite big volume change, but parts of Sn particles in Sn/CMC or Sn/PVDF electrode are electrically isolated.
Journal: Journal of Power Sources - Volume 263, 1 October 2014, Pages 276–279